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1   // ========================================================================
2   // Copyright (c) 2006-2010 Mort Bay Consulting Pty. Ltd.
3   // ------------------------------------------------------------------------
4   // All rights reserved. This program and the accompanying materials
5   // are made available under the terms of the Eclipse Public License v1.0
6   // and Apache License v2.0 which accompanies this distribution.
7   // The Eclipse Public License is available at 
8   // http://www.eclipse.org/legal/epl-v10.html
9   // The Apache License v2.0 is available at
10  // http://www.opensource.org/licenses/apache2.0.php
11  // You may elect to redistribute this code under either of these licenses. 
12  // ========================================================================
13  
14  package org.eclipse.jetty.annotations;
15  
16  import javax.servlet.Servlet;
17  
18  import javax.annotation.security.DeclareRoles;
19  import org.eclipse.jetty.annotations.AnnotationIntrospector.AbstractIntrospectableAnnotationHandler;
20  import org.eclipse.jetty.security.ConstraintSecurityHandler;
21  import org.eclipse.jetty.webapp.WebAppContext;
22  
23  /**
24   * DeclaresRolesAnnotationHandler
25   *
26   *
27   */
28  public class DeclareRolesAnnotationHandler extends AbstractIntrospectableAnnotationHandler
29  {
30  
31      protected WebAppContext _context;
32      
33      /**
34       * @param context
35       */
36      public DeclareRolesAnnotationHandler(WebAppContext context)
37      {
38          super(false);
39          _context = context;
40      }
41   
42  
43      /** 
44       * @see org.eclipse.jetty.annotations.AnnotationIntrospector.AbstractIntrospectableAnnotationHandler#doHandle(java.lang.Class)
45       */
46      public void doHandle(Class clazz)
47      {
48          if (!Servlet.class.isAssignableFrom(clazz))
49              return; //only applicable on javax.servlet.Servlet derivatives
50          
51          DeclareRoles declareRoles = (DeclareRoles) clazz.getAnnotation(DeclareRoles.class);
52          if (declareRoles == null)
53              return;
54          
55          String[] roles = declareRoles.value();
56  
57          if (roles != null && roles.length > 0)
58          {
59              for (String r:roles)
60                  ((ConstraintSecurityHandler)_context.getSecurityHandler()).addRole(r);
61          }
62      }
63  
64  }